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<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        const arr = [100, 200, 300, 10, 2];
        // 筛选大于等于200的元素
        const newArr = arr.filter(item => item >= 200);
        console.log(newArr);// [200,300]
    </script>
</body>

</html>